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A106999
Primes of the form 2x^2+xy+12y^2, with x and y any integer.
1
2, 13, 67, 103, 107, 113, 173, 227, 307, 317, 337, 383, 433, 487, 607, 673, 773, 887, 907, 977, 983, 1093, 1097, 1117, 1193, 1237, 1283, 1427, 1433, 1447, 1523, 1627, 1663, 1723, 1823, 1877, 1933, 1997, 2017, 2143, 2237, 2293, 2377, 2383, 2393
OFFSET
1,1
COMMENTS
Discriminant=-95.
LINKS
Vincenzo Librandi and Ray Chandler, Table of n, a(n) for n = 1..10000 [First 1000 terms from Vincenzo Librandi]
N. J. A. Sloane et al., Binary Quadratic Forms and OEIS (Index to related sequences, programs, references)
MATHEMATICA
Union[QuadPrimes2[2, 1, 12, 10000], QuadPrimes2[2, -1, 12, 10000]] (* see A106856 *)
CROSSREFS
Sequence in context: A037640 A137967 A045764 * A054566 A038144 A097977
KEYWORD
nonn,easy
AUTHOR
T. D. Noe, May 09 2005
STATUS
approved